I have endometriosis and have had 2 kids. Got it done 6 months PP for birth control and to prevent painful periods. I have a high pain tolerance especially in that area due to years of endo pain. The insertion felt like a huge contraction. It was not a good feeling for 1 minute...I was achy for about 15-30 minutes but then fine by the time I got home. Totally worth 5 years of no more painful periods! I feel like I can live my life and worry about other, more important things like my kids, instead of worrying about if my period is supposed to come this week or next. I think the worst part was the anxiety leading up to it, based on all the comments I saw online from other women!